12735639

素因数分解:

$3^2\times 7^2\times {\mathrm{28879}}^1$

素因数の和:28899

約数の個数: 18

約数和(自身を含む): 21400080

約数和(自身を除く): 8664441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 28879, 86637, 202153, 259911, 606459, 1415071, 1819377, 4245213, 12735639]

約数ペア:

[(1, 12735639), (3, 4245213), (7, 1819377), (9, 1415071), (21, 606459), (49, 259911), (63, 202153), (147, 86637), (441, 28879)]